How many CVEs have patched UnwrapKey?

1 published CVEs changed UnwrapKey in bcgit/bc-csharp, in 1 distinct patches totalling 35 changed lines, between 2026 and 2026.

What is the latest CVE that changed UnwrapKey?

CVE-2026-63573 (Bleichenbacher padding oracle in CMS RSA PKCS#1 v1.5 key-transport unwrap), published 2026-10-02, changed lines 81 to 124 of crypto/src/cms/KeyTransRecipientInformation.cs.

How does UnwrapKey compare to the rest of bcgit/bc-csharp?

bcgit/bc-csharp has 23 CVEs with a located fix in total; 1 of them changed UnwrapKey.

What do the line numbers refer to?

Line numbers are in the fixed version of the file, as the upstream patch left it. A CVE whose fix was backported to several branches is listed once, with the lines from the upstream commit.

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UnwrapKey

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Patched Functions
Bcgit
Bc Csharp
UnwrapKey

UnwrapKey in bcgit/bc-csharp: Patched by 1 CVEs

bcgit/bc-csharp

Function

UnwrapKey

Name: UnwrapKey in bcgit/bc-csharp: CVE fixes
Creator: RadicalNotion.AI
License: https://creativecommons.org/licenses/by-nc/4.0/

crypto/src/cms/KeyTransRecipientInformation.cs

Last patched October 2, 2026

CVEs

That changed this function

Distinct patches

Backports counted once

Lines changed

Added plus removed

2026

Years

By CVE publication date

Overview

UnwrapKey in bcgit/bc-csharp was changed by 1 published CVE fixes in 2026, in 1 distinct patches that added or removed 35 lines in total.

bcgit/bc-csharp has 23 CVEs with a located fix in total, so 4% of them touched this function.

CVEs that patched it

Every published CVE whose fix changed UnwrapKey, newest first, with the lines each fix touched.

Bleichenbacher padding oracle in CMS RSA PKCS#1 v1.5 key-transport unwrap
CVE-2026-63573 · lines 81–124 · +32 −3 in 2 hunks
High · CVSS 8.2
EPSS 0.3%2026-10-02

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Other hotspots in the repository

Functions in bcgit/bc-csharp changed by the most CVE fixes.

GenerateCipherParameters3 CVEs · crypto/src/security/PbeUtilities.cs FindDepth3 CVEs · crypto/src/asn1/Asn1InputStream.cs FindLimit3 CVEs · crypto/src/asn1/Asn1InputStream.cs ImplGetInteger3 CVEs · crypto/src/math/ec/ECCurve.cs BuildField3 CVEs · crypto/src/math/ec/ECCurve.cs ValidateIterations3 CVEs · crypto/src/pkcs/Pkcs12Utilities.cs

All patched functions in bcgit/bc-csharp

Frequently asked questions

Common questions about CVE fixes to UnwrapKey.

How many CVEs have patched UnwrapKey?: 1 published CVEs changed UnwrapKey in bcgit/bc-csharp, in 1 distinct patches totalling 35 changed lines, between 2026 and 2026.
What is the latest CVE that changed UnwrapKey?: CVE-2026-63573 (Bleichenbacher padding oracle in CMS RSA PKCS#1 v1.5 key-transport unwrap), published 2026-10-02, changed lines 81 to 124 of crypto/src/cms/KeyTransRecipientInformation.cs.
How does UnwrapKey compare to the rest of bcgit/bc-csharp?: bcgit/bc-csharp has 23 CVEs with a located fix in total; 1 of them changed UnwrapKey.
What do the line numbers refer to?: Line numbers are in the fixed version of the file, as the upstream patch left it. A CVE whose fix was backported to several branches is listed once, with the lines from the upstream commit.

References

crypto/src/cms/KeyTransRecipientInformation.cs on GitHub (opens in a new tab)
All patched functions in bcgit/bc-csharp
Patched functions directory

Fix locations are computed by RadicalNotion.AI from the upstream patch diff of each CVE. CVE data is sourced from the CVE Program.

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Overview
CVEs that patched it
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References